Symmetric tongue and T-cross

Patent metadata

Field	Value
Publication number	US-11933335-B2
Application number	US-202218058037-A
Country	US
Kind code	B2
Filing date	Nov 22, 2022
Priority date	Apr 18, 2018
Publication date	Mar 19, 2024
Grant date	Mar 19, 2024

Abstract

A set including a first panel, a second panel and a mechanical locking device for locking the first panel to the second panel, the mechanical locking device includes an insertion groove at the second edge surface, a flexible tongue positioned in the insertion groove and an edge tongue including a tongue groove, the flexible tongue includes a first locking surface and a second locking surface, the first locking surface is configured to cooperate with the tongue groove for locking of the first panel to the second panel in a first direction when the flexible tongue is positioned in the insertion groove in a first orientation, the second locking surface of the flexible tongue is configured to cooperate with the tongue groove for a locking of the first panel to the second panel in a first direction when the flexible tongue is positioned in the insertion groove in a second orientation.

First claim

The invention claimed is:

1. A set for a furniture product comprising a first panel, a second panel and a mechanical locking device for locking the first panel to the second panel, wherein the first panel comprises a first edge surface and a first panel surface and the second panel comprises a second edge surface and a second panel surface, wherein the first panel surface is perpendicular to the second panel surface in a locked position of the first panel and the second panel, wherein:
the mechanical locking device comprises an insertion groove at the second edge surface, a flexible tongue positioned in the insertion groove and an edge tongue at the first edge surface comprising a tongue groove,
the flexible tongue comprises a first locking surface and a second locking surface,
the first locking surface is configured to cooperate with the tongue groove for locking of the first panel to the second panel in a first direction when the flexible tongue is positioned in the insertion groove in a first orientation,
the second locking surface of the flexible tongue is configured to cooperate with the tongue groove for a locking of the first panel to the second panel in the first direction when the flexible tongue is positioned in the insertion groove in a second orientation,
the first locking surface and the second locking surface is positioned on the flexible tongue on both sides of the flexible tongue,
the flexible tongue comprises a guiding surface positioned between the first and second locking surfaces, and
the guiding surface is configured to cooperate with the edge tongue during a displacement of the first panel relative to the second panel.

2. The set as claimed in claim 1 , wherein the first locking surface and the second locking surface are flat, spaced from one another, and symmetrically positioned on the flexible tongue.

3. The set as claimed in claim 1 , wherein an angle between the first and second locking surfaces is within the range of about 90° to about 180°.

4. The set as claimed in claim 1 , wherein a core of the first panel and/or of the second panel is/are wood-based core.

5. The set as claimed in claim 1 , wherein the guiding surface in a first end is connected to the first locking surface and in a second end is connected to the second locking surface.

6. The set as claimed in claim 1 , wherein the guiding surface has a curved shape.

7. The set as claimed in claim 1 , wherein the guiding surface has a shape of a circular segment.

8. The set as claimed in claim 6 , wherein the curved shape of the guiding surface has a radius between the first and second locking surfaces within the range of about 0.5 mm to about 3 mm.

9. The set as claimed in claim 6 , wherein the flexible tongue has a thickness T and wherein the curved shape of the guiding surface has a radius between the first and second locking surfaces within the range of about 0.2×T to 1.2×T.

10. The set as claimed in claim 1 , wherein the guiding surface is configured to cooperate with a curved shape surface of a disassembling tool.

11. The set as claimed in claim 1 , wherein the flexible tongue has a support surface positioned opposite to the guiding surface, wherein the support surface has a curved shape with a radius within the range of about 25 mm to about 50 mm.

12. The set as claimed in claim 6 , wherein the curved shape of the support surface has a radius that is smaller than a radius of a bottom surface of the insertion groove.

13. The set as claimed in claim 1 , wherein the first or second direction for locking of the first panel to the second panel is parallel and/or perpendicular to the second panel surface.

14. The set as claimed in claim 4 , wherein the wood-based core comprises a MDF, HDF, OSB, plywood or particleboard.

15. The set as claimed in claim 4 , wherein the wood-based core is of solid wood.

Assignees

• Vaelinge Innovation Ab
• Valinge Innovation Ab

Inventors

• Derelöv Peter

Classifications

• F16B12/24 Primary

  using separate pins, dowels, or the like · CPC title

• A47B47/0075

  Flat or flat-like panels connected without frames (for panels mainly made of wood or plastic A47B47/042) · CPC title

• A47B47/042 Primary

  Panels connected without frames · CPC title

• A61M5/1413

  Modular systems comprising interconnecting elements · CPC title

• E04F15/02011

  with joint fillings integrated in the flooring elements · CPC title